Heel-cutting apparatus.



W. 1'. .NESBITL HEEL CUTTING APPARATUS.

APPLICATION FILED Fz.1o. 1917.

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Patented Mar,

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HEEL CUTTING APPARATUS.

APPLICATION FILED .FEB. I0, |917.

Patented Mar. 2, 19l8.

Attorney.

W. J. NESBITT.

HEEL CUTTING APPARATUS.

APPLICATION FILED FEB. Io. |911.

Patented Mar. 12, i918.

4 SHEETS-SHEET 3.

nas

W. NESBITT.

HEEL CUTTING APPARATUS.

APPLICATION FILED FEB. l0. 191?. Lg. Patented Man 12, 19181 4 SHEETS-SHEET 4.

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@Nairn WILLIAM J'. NESBITT, OF LOS ANGELES, CALIFOI'LI'IA.

HEEL-CUTTING APPARATUS.

Specication of Letters Patent.

Patented nar. i2, isis.

Application filed February 10, 1917. Serial No. 148,240.

To all whom 'it may concern:

Be it known that I, WILLIAM J. Nnsnrrr, a citizen of the UnitedStates of America, residing at Los Angeles, county of Los Angeles, State of California, have invented a certain new and useful Heel-Cutting Apparatus; and I do hereby declaro the follow- Y ing to be a full, clear, and eXact description of the invention, such as will enable others skilled in the art to .which it appertains to make and use the same.

This invention relates to heel cutting apparatus, and it may be said to consist in the provision of the novel and advantageous features and in the novel and improved construction, arrangement, and combination of parts and devices as will be apparent from the description and claim which follow hereinafter.

One object of the invention is to provide a novel and improved heel cutting apparatus in which the cutter is arranged on a mounting whereby the cutter can be moved to have the cutter cut the heel, and which mounting permits of the cutter being adjusted laterally toward or away from the heel, and which mounting permits of the cutter being tilted so that it will cut one side of the heel thicker than the other side, and which mounting also permits of the cutter being adjusted so that it will make an angular cut longitudinally of the heel.

Another object of the invention is to provide a novel and improved heel cut-ting apparatus in which compressed air is utilized to operate the heel holding device, and to effect movement of the cutter past the heel to cut the heel- Other objects and the advantages of the invention will be apparent to those skilled in the art from a careful consideration of the following description of the preferred construction embodying the invention, taken in connection with the accompanying drawings in which- Figure 1 is a front elevational View of the heel cutting apparatus, Fig. 2 is a side elevational view of a part of the cutter mounting7 Fig. 3 is a plan view of the same; Fig. 4 is a sectional view taken on the line 4 4 of Fig. 2; Fig. 5 shows side elevational and plan views of the arm which carries the cutter; Fig. 6 isfan enlarged broken side elevational view of theapparatus taken on the line 6-6 of Fig. 1; Fig. 7 is a plan view of the same; Fig. 8 is a broken sectional'view taken on the line 8-8 of Fig. 6; Fig. 9 is a broken sectional view taken on the line 9*'9 of Fig. 6; Fig. 10 is a broken plan view taken on the line 10-10 of Fig. 9; Fig. 11 is an enlarged plan view of the compressed air valve; Fig. 12 is a sectional view of the valve taken on the line 12-12 of Fig'. 11; Fig. 13 is a sectional view taken on the line 13-13 of Fig. 12; Fig. 14 is a plan view of the frame and of a portion of the adjustable mounting for the cutter; Fig, 15 shows plan and side elevational views of the support which is adjustably mounted on the frame; and Fig. 16 shows plan and side elevational views of the table which is pivotally mounted on the support.

The frame in this instance is preferably rectangular, and it consists of the front and rear upright corner angle bars 17 and 18, the angle bar 19 suitably secured to the upper part of the front corner angle bars 17, the angle bar 20 suitably secured to the upper part of the rear corner angle bars 18, the side pieces 21 connected between the front and the rear corner bars 17 and 18, and the brace 22 suitably connected between the front corner bars 17.

A support 23 is arranged so that it can be adjusted transversely on the frame; said support 23 being provided at its ends with guide pins 24 which extend in the guideways 25 which are provided in the front and rear angle bars 19 and 20. A table 26 is connected by the pivot 27 'to the upper part of the adjustable support 23. The table 26 is provided with a guideway 28 into which extends the downward projection 29 on the slide 30. As shown in this instance the slide 30 is mounted between guides 31 on the top of the cylinder 32 which is attached by the bolts 33 to the lugs 34 on the table 26. The circular saw or cutter 35 is mounted on the shaft 36 and is disposed between the spaced arms 37 and 38' on the forward end of the shaft 39 which is pivotally mounted in the bearings 40 and 41 on the slide 30. rllhe shaft 36 is mounted in the bearings 42 on the arms 37 and 38 and in the bearing 43 on the bracket 44 which is suitably secured to the arm 38.

The support 23 may be operated by any suitable means, that shown consisting of the shaft 45 which bears pivotally in the angle bars 19 and 2O of the frame; said shaft 45 having secured thereto the arms 46 to which are pivotally connected the links 47 which are also pivotally kconnected to the lugs 48 on the underside of the to one of the side pieces 21 of the frame.

To the dog 52 is pivotally connected one end of the link55 which has its-other end pivotally connected kto the bell crank lever 56 which is pivotally connected to theleverV 49 and is normally pressed away from the handle 50 'by a spring` 57 which lis interposedv between the bell crank lever 56 and the handle 50. Y

The table 26 can be turned on the pivot 27 by means ofthe lever 58 to which is pivotally connectedone end ofthe link 59 which has its other end'pivotallyconnected to the table 26. The lever 58 has a handle 60 at one end and it has its other end connected tothe Apivot 61 `on the lateral extension 62 of the rea-r end of the support 23. A dog 63 is pivotally mounted on the lever ,58 and is adapted-to engage the teeth 64011 the eX- tension 62 to lock 'the lever 58 in adjusted position. A Alink 65 has one end pi-votally connected tothe dog 163 and has its other end Ypivot-.ally connected to the bell crank lever 166 which is rpivotailly connected to the lever 58 and is normallypressed away Vfrom the lhandle-60 by a spring'67 which is interposed between the bell crank lever 66 and the handle `60.

The shaft 39 can be turned on the slide 30 byfmeansffof the lever 68 which is provided with a handle 69 :at one end and has its other end pivotally connected to the lateral extension 70.011 the slide' 30; said lever 68 being lconnected bythe link 71 fto the downwardly Einclined lateral extension 72 on the bracket 73 which is secured to the shaft 39. The link 71 has one fend pivotally connected to the lever 68 and has its other endV pivot# ally connected to the extension 72. The lever .68 has thereon the pivoted .dog 74 which is adapted to engage the teeth 75 on the eX- tensi-on 70 to lock thel -lever in adjusted position. A linfk 76 has one end pivotal'ly connected to the Adog 74V and has its other end Vpiivotally connected'to the bell crank lever 77 which is pivotal'ly mounted on the lever 68 and is normally pressed yaway from the handle 69 by the spring 78 which is interposed between the handle 69 and the bell crank vlever 77.

YThe cutter 35'c'an be operated by the motor 79 which is suitably secured to the bracket 73 and hasvon its shaft 80, the sprocket pinion 181fwhich-is connected by the sprocket chain 82 to :the sprocket wheel 83 which is secured tothe shaft 36.

The shoe holding device'may be of any suitable or approved construction, that shown consisting of the jaws 84 and 85 which have thereon the plates 86 adapted to fit in the creasebetween'theheel seat and the heel ofthe shoe 87. The jaw 84 is suitably secured to the upstanding arm 88 of a bracket 89 which is formed with a rearward eXtenvided on the jaw 84 and is connected'to `the` piston 94 in the cylinder 95 which isfmounted on the extension 91. vrlhc piston 96 in the cylinder 32 is connected by therod 97 -to the downward extension 29 of the slide 30.` A rotary valve has its casing 98 suitably mounted on the angle bar 19, and has fitted in said casing 98 a rotary disk99 provided with a stem r100 on which vis removably fitted the crank 101 for operating the valve..

rlhe casing 98 is-provided with-the ports 102, 103, 104, 105, and 106. A pipe l107 isconnectedito the port 102 and leads .to a tank,

not shown., for supplying compressed air..

A pipe 108 is connected between the port 103 and the port 109 inthe upper end of the cylinder 95; a pipe 110 is connected between the port '105 and the port 11'1 in the lower end lof the cylinder 95; a pipe 112 is connected between the port 4104 and the port 113 in the rear party of the cylinder 32; and a pipe 114 leads from the port 106 to the port 115 in the forward part of the cylinder 32. The disk 99 is provided with the passageways 116, 117, 118nand 119, Aand the casing 98 is provided with the exhaust passageway 120 which is in open communication with the .passageway 119, vand with the `passageway 118 which latter'is infopen communication with the passageway 117.

From the foregoing description the construction, mode of operatioinand advantages of the apparatus will be understood by those skilled in the art. When the shoe 87 is placed on the jaw 84 the disk 99y of lthe valve is turned to have the passageway 117 in communication with the port 105, :and to have the passageway 116 in communication with 4the port 103, so that the air already inVV the cylinder 95 is free to pass out through the pipe 110, and the passageways 117, 118, and 120, a-nd the piston 94 is moved down by air under pressure passing through the pipe 108 to the upper part of the cylinder 95. VThe piston 94 moves down until the jawf engages the shoe 87so that the latter Y i Y is` clampedgin kposition between the Vj aws 84 and 85. By operation. vofthe lever 49the support 23 and consequentlyqthecutter 35" can be adjusted laterallyl toward `or 'away from the heel of the shoe 87 according. to

the amount that is to be cut oft' of theV heel'. 1900 If it is desired to make an angular cut longitudinally of the heel the lever 65 can be operated to turn the table 26 on the pivot 27 and consequently turn the cutter 35 according to the angle desired. If it is desired to make an angular cut transversely of the heel to have one side thicker than the other, the lever 68 can be operated to turn the shaft 39 on the slide 30 and consequently tilt the cutter 35 according to the angle desired. After making adjustments to adjust the cutter 35 according to the cut which it is desired to make through the heel, the disk 99 can he turned until the passageway 117 is in communication with the port 106, and the passageway 116 is in communication with the port 104, so that the air already in the cylinder 32 is free to pass out by way of the pipe 114C and the passageways 117, 118, and 120, and the piston 96 is moved forwardly by air under pressure passing into the rear part of the cylinder 32 through the pipe 112. The forward movement of the piston 96 moves forwardly the slide 30 and effects movement of the cutter past the heel so that a part of the heel is cut 0E. If now the disk 99 is turned in a reverse direction to its irst or normal position, it will be seen that the cutter 35 will be moved to its rearward position, and then the jaw 85 will be moved to its raised position out of engagement with the shoe 87.

The construction which has been particularly illustrated and described admits of changes and modificationswherefore the right is reserved to all such changes and modications as `do not depart from the spirit and scope of the invention which is dened in the appended claim.

I claim:

Heel cutting apparatus comprising the combination of a heel holding device, a movably mounted cutter, and means for operating said heel holding device and said cutter by air under pressure, said means including a valve actuatable to effect in succession the operation of said heel holding device and said cutter, substantially as set forth.

In testimony whereof, I have signed my name to this specication at Los Angeles, county of Los Angeles, State of California, this 31st day of January, A. D. 1917.

WILLIAM J. NESBITT.

Gopies of this patent may be obtained for ve cents each, by addressing the Commissioner of Patents, Washington, D. G. 

